Permutation lock



' J. FELDMEYER PERMUTATION LocK Filed May 12, 1928 Feb.v 24, 1931'.

iatented Feb. 24, 1931 @UNITED .Tosm FELDMEYER, or MUNICH, GERMANY f rERMU'rATIoN Leer;Y i

- t .applicateurv filed may 12, 192s, serial 110.1277331, and ,in German-yf ruiy 29,19%,.15:

This'invention relates to a permutationlock with locking-bodies adapted to be inl c serteda'nd adjusted and designed to lock the latch, as described in my patent application v ffSerial Number 2313647, dated- November 7 th,

, 1927.- The` invention consists in a circular arrangementofthe'lookin'g'bodies and of the co-operating; elements. j Y

An embodiment off'the invention is illus- 101 trated, by way of example, in the accompanyingi drawing i-n which: i Fig. 1- is a frontelevation showing the improved permutation-lock. l

Fig. 2 is aV longitudinal/section Online 2 2 151ofFig.1. f Y Fig. 3 is a front-elevation showingthe permutation-lock from which the locking bodies andA their bearing ring have Ybeen, removed.

Fig. 4f is a cross section Online H of- Fig. 5 showsin elevation the bearing ring with the lockingxbodies removedfrom the lock. Y

Fig. 6 is a cross-section of Fig. 5.

252 Fig. 7- isv a similar view as Fig; 3 showing a modiiied construction of the permutation lock, the lockingV bod-ies and their bearing` ring being removed. I

Fig. 8 1s a side-elevation of Fig. 7

- sof; rPhe'locking bodies 1 are of a similar construction as the locking-bodies described in my. parent application Serial Number 231,647. Eachlocking body consists of a circular disc# shaped element having anotch 2 in its periph- 36;er=`y,iahandle and a short axle `inthe centre of this disc-shaped element. f Each locking body has further two indentations 4 arranged symmetrically theone opposite the other and Withwhichl engages a plate-spring to securely fhold the locking body in its actual position so that the handle is standing perpendicularly tol thev bearing surface. The' locking bodies can be turned towards both sidesirom this-position, whereby diii'erent combinationsv j' 4550i adjustings can be produced. In some locking bodies the notch 2 is symmetrical to the Vhandle and in other locking bodies it is unsymmetrical so that for each locking body a certain adjusted position is necessary inV `:ya-order .that a locking element-.can bemoved .this movement.

l, groove 6 and as many radial slots 7 ,as there impeding not the insertion and adjusting,l oi

Which intersects the-surfaces; and (af-: i thelocking bodies, the boltfcbeing released by For .the circular ar Kangfermentof` the' lrock-l ing. bodies a circular bearingfrin'gi' forthetQ same and a ring-shaped lockingelement' are used, the unlockingbei-ng effected kby a part? rotationof the locking ring.l `-The bearingz ring 5`- has in its, upper surfacel an annular $0-- are locking bodies. The discs of the locking, bodies fit accurately into these slots and-their aXlesSy are then aocommodatedin. the annular;

`groove 6ofthe bearing` ring'5. y i y j In afoentral cavity of the bearing ring a 65,.. n

lockingbodies, saidrecessesfbeing off such -80- j dimensions' thatthe portions `of the -discs of the locking bodies which intersect the annulargroove 9 vand lthe locking ring, 10 of the sametlinto these recesses, the. locking ringv the locking bodies but beingv incapablev of rotary movementv unless all the locking bodiesv are adjusted -so that their notches are situated in their annular groove9.

The bearing ring` 5 islfixed on the rear-` plate 12-of theilocky casing, the vlocking rin-g 10 being rotatable between vsaid plate and e ring. The locking ring 10 has aY laterally projectingA tonguel engaging with a bolt 14, the latterA being forced by theaction cfa. spring 15into the ,lock-ing' position together withv a looking element 16 off the lock. LThis locking elementgl may consistofashackle,` adapted tov be engaged with thejboltfin opposition to-theaction of Va spring 17', asin padlocks, or of a pin 18 having a transverse groove as shown m Fig. 8, designed 'for satchels.

When the corresponding end of the shackle 16 or ot the pin 18 is pressed in, the bolt 14 or 14 is pushed back in opposition to the action of spring 15 ork 15 and engageswithj the incision of the shackle 16 or pin 18.

The lock casing has a hole 19 (Fig. 7

.into Which the pin 18 is to be inserted and the fthe right and releases the shackle or other locking element.

For rotating the lockingl ring a ring 23 having two knobs 24 serving as handles isy loosely mountedv in the cover-plate--of the lock. This ring 23 has a cylindrical extension 25. i l

To the rear plate 12 of ring is loosely mounted.-v kAn extension 25 from. the ring 23 has two teeth 27 vengaging withy a. cut-out portion 28 of the 'plate 26 andextending to the rear-pla-te'12 of the casing so 'that they bear aga-inst opposite sides'of the tongue 130i the locking ring, said tongue being situated also inthe cut out portion 28 of the bottom-plate. The side walls of this cut-out portion 28 lform also 'stops for the tongue 13 to' limit the rotation' of the locking lring Ain bothdirections When the tongue is bearingagainst the left side Wall of the-portion 28, it is securedv in this position by the bolt 14 and by the spring of said:

bolt, and in this position allfthel recesses 11 of the locking ring register" with the'notches 7 of the bearing ring so that the locking bodies can be insertedor adjusted. Y

When a locking body is adjusted so that its notch 2 does not register with the' lower annular groove 9 of the bearing ring, the disc of the locking body intersecting this annular groove, it is not possible to 'rotate the ring 23 sothat the lock cannot be unlocked.

The unsymmetrical arrangement of the notch 2 in some locking bodies is made for the purpose that, even ir all lockinglbodies have been adjusted tothe same position, it Vis not possible to unlock the lock. I f

The locking bodies in which the notch is unsymmetrical to the handle or the aXl-e must adopt, for opening the lock, another position than the other locking bodies. rlhe locking bodies can be interchanged at will to obtain other adj usting combinations.

'In the form of construction shown in Fig. 1 three symmetrical and three unsymmetri'cal the lock-casingV a plate 26 is connected on which the lockingV locking bodies are provided, and the three unsymmetrical bodies 1 are mounted in the lower portion of the lock and must all three be turned in an outward 'direction in order that the lock may be unlocked, while theV other three locking bodies must be placed in .the middle position.

Upon the adjusting of the lock all six locking bodies are preferably turnedin an outward ydirection or brought into the middleposition, asshown in Fig. 6. t is however sufiicientrto bring any one of the locking bodies into another position as shown in lf the three unsyinmetrical locking bodies 1 were removed and'turned upside down they would, in Yorder tobring the lock into the open position, have to be turned in inward directioninstead of in outward direction, as they wouldthenf-in this' position, intersect the annular groove 9 Awith their notches 2 and let the-locking- `ring pass.

The locking bodies areV held in their bearings by a cover-plate 29: This cover-plate .has radial slots '30 which are placed over the locking bodies so that these locking bodies project through the slots, the-axles of the locking? bodies being pressed by thexcoverplate into the annular` groove 6 of the bearing ring 5. Y v I Y, f'

The cover-plate 29 has at its centre an inwardly extending bolt 31 with a narrowed portionV 32. The end of bolt 31 engages-with the hole 40 of the rear-plate 12 of the lockcasing sothat the narrowedportion 32 ,is

situated in the plane of plate 26. Y

plate 26fhas a cutout portion-33 in The which a slide 34 is located which projects lfrom one side of the lock-casing. This slide 34 has a hole 35 with slot 35. The hole 35 is ofthe' same diameter as the bolt 31 the width of the slot 35 corresponding to the narrowed portion 32 of the bolt.

It the slide is not completely inserted 'into l the, lock-casing so that the hole 35 registers with the 'hole 40 in the rear-Wall of the lockcasing,lthe bolt 31 can be inserted. When then the slide is 'completely pushed in, its

slot 35engages overfthe narrowed portion 32 of the bolt and securely holds'the same in this position.

Th-e cylindrical extension 25 of the ring" 23 has an extension 36, and in the slide 34'an` arc-shaped `slot 37 is arranged with which this extension 36 engages and prevents pulling out of the slide.

When the lock is adjusted for thev unlockedv position and unlocked lby a rotation Aof the ring 23, the extension' 36 of thisring disengages from the slot 37 ot the slide so that the slide can be pulled out.

Between the cover-plate 29 and the bottom of the bearing ring` 5 a spiral -spring 38 is inserted which liftsthe ycover-plate 29 with its bolt 31 assoonv as the lslide is pulled out s'o thatk its hole 35 comes to register Withthe bolt. v

On the outer surface of the cover-plate 29 a knob 39 is provided to facilitate the press` ing in of the cover-plate.

I claim :e Y l. A lock, comprising 1n combination a number 'of disc-shaped 1 rotatable locking bodies arranged in a circle and having each a notch in its periphery, a handle on each'locking body, a bearing ring in which said locl- Y ingbodies are journaled, means for securely Yso holding said locking bodies insaid bearing ring, and a locking ring engaging With said bearing ring and intersecting the notches of said locking bodies and adapted to be rotated if all the Vlocking'bodies arecorrectly adjusted. n .Y

v2. A lock, comprising incombination a number. of disc-shaped rotatable locking bodies arranged in a circle and having each a notch in its periphery,l the notch'in some locking. bodies being arrangeddifferently from the notch in other locking bodies, a

iesv and adapted to be rotated if all the lock.-

ing bodies are correctly adjusted.

3. In a permutation lock, a casing, a plurality of disk-shaped locking bodies arranged in a circle and rotatably mounted in said casing, each body having a notch in its periphy `ery and a handle for rotatably adjusting it,

and a locking ring intersecting the notches e of said rotary bodies and adapted to be rotated if all the locking bodies are correctly adjusted. Y

4. In a permutation lock, a casing, a plurality of disk-shaped locking bodies arranged in a circle and rotatably mounted in said casing, each body having a notch in its periphery and a handle for rotatably adj usting it, and a locking ring having ribs for engagement With the notches of the bodiesto permit rotation of said ring When said bodies are correctly adjusted and recesses alternat- Y ing With said ribs and adapted to receive the bodies to permit rotary motion of the latter.

ranged in a circle and rotatably mounted in saidcasing, each body having. a notch in its periphery anda handle for rotatably adjust ing it, means forholding said bodies iny posi- `tion and releasing the same to permit inde- Y pendent applicationv land removal of the bodies,'fand a locking ring intersecting the notches of said rotary bodies and adapted to be rotated if all'the locking bodies are cor.l

rectly adjusted.

7 In a permutation lock, a casing, a bearing ring in said casing provided With open bearings, a plurality of disk-shaped locking bodies arranged atV spaced intervals about said ring andremovably journaled in said open bearings, a removable holding member for retaining said bodies in said bearings, and a locking ring intersecting Vthe notches offsaidrotary bodiesand adapted to berotated if all the locking. bodies are correctly adj usted;

. In testimony whereof I aX'my signature.

. JOSEF FELDMEYER.jv

5. In a permutation lock, -a casing, a bearing ring in said casing, a plurality of diskshaped locking bodies arranged at spaced intervals around said ring and rotatably f mounted thereon, each body having a notch in its periphery and a handle for rotatably adjusting it, and a locking ring movable` about said bearing Vring and intersecting the notches of said rotary bodies and adapted to be rotated if all the locking bodies kare correctly adj usted.

6. In a permutation lock, a casing, a plu- Y rality of disk-shaped locking bodies ar- Y 

